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fix _NSIG usage

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This commit is contained in:
David van Moolenbroek 2009-11-28 13:20:50 +00:00
parent c6cce1823d
commit 6da61b8f05
10 changed files with 19 additions and 19 deletions
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4
commands/sh/sh3.c
View File

@ -854,7 +854,7 @@ register struct op *t;
register int resetsig;
if (t->words[1] == NULL) {
for (i=0; i<=_NSIG; i++)
for (i=0; i<_NSIG; i++)
if (trap[i]) {
prn(i);
prs(": ");
@ -894,7 +894,7 @@ char *s;
{
register int n;
if ((n = getn(s)) < 0 || n > _NSIG) {
if ((n = getn(s)) < 0 || n >= _NSIG) {
err("trap: bad signal number");
n = 0;
}

2
commands/sh/sh4.c
View File

@ -387,7 +387,7 @@ int quoted;
}
*e.linep = 0;
/* allow trapped signals */
for (i=0; i<=_NSIG; i++)
for (i=0; i<_NSIG; i++)
if (ourtrap[i] && signal(i, SIG_IGN) != SIG_IGN)
signal(i, SIG_DFL);
dup2(pf[1], 1);

2
commands/simple/kill.c
View File

@ -69,7 +69,7 @@ char **argv;
}
if (sig < 0) { /* numeric? */
ul = strtoul(argv[1] + 1, &end, 10);
if (end == argv[1] + 1 || *end != 0 || ul > _NSIG) usage();
if (end == argv[1] + 1 || *end != 0 || ul >= _NSIG) usage();
sig = ul;
}
argv++;

2
commands/simple/login.c
View File

@ -445,7 +445,7 @@ char *argv[];
/* Reset signals to default values. */
sa.sa_handler = SIG_DFL;
for (n = 1; n <= _NSIG; ++n) sigaction(n, &sa, NULL);
for (n = 1; n < _NSIG; ++n) sigaction(n, &sa, NULL);
/* Execute the user's shell. */
execve(sh, argx, env);

2
kernel/system.c
View File

@ -336,7 +336,7 @@ PUBLIC void send_sig(int proc_nr, int sig_nr)
*===========================================================================*/
PUBLIC void cause_sig(proc_nr, sig_nr)
int proc_nr; /* process to be signalled */
int sig_nr; /* signal to be sent, 1 to _NSIG */
int sig_nr; /* signal to be sent */
{
/* A system process wants to send a signal to a process. Examples are:
* - HARDWARE wanting to cause a SIGSEGV after a CPU exception

2
kernel/system/do_kill.c
View File

@ -32,7 +32,7 @@ message *m_ptr; /* pointer to request message */
proc_nr_e= m_ptr->SIG_ENDPT;
if (!isokendpt(proc_nr_e, &proc_nr)) return(EINVAL);
if (sig_nr > _NSIG) return(EINVAL);
if (sig_nr >= _NSIG) return(EINVAL);
if (iskerneln(proc_nr)) return(EPERM);
/* Set pending signal to be processed by the PM. */

2
lib/ansi/raise.c
View File

@ -15,7 +15,7 @@ pid_t _getpid(void);
int
raise(int sig)
{
if (sig < 0 || sig > _NSIG)
if (sig < 0 || sig >= _NSIG)
return -1;
return _kill(_getpid(), sig);
}

2
lib/ansi/signal.c
View File

@ -11,7 +11,7 @@ sighandler_t disp; /* signal handler, or SIG_DFL, or SIG_IGN */
{
struct sigaction sa, osa;
if (sig <= 0 || sig > _NSIG || sig == SIGKILL) {
if (sig <= 0 || sig >= _NSIG || sig == SIGKILL) {
errno = EINVAL;
return(SIG_ERR);
}

8
lib/posix/_sigset.c
View File

@ -2,6 +2,8 @@
/* System processes use simpler macros with no range error checking (defined in
* signal.h). The ANSI signal() implementation now also uses the macro
* versions, which makes hiding of the functions here a historical remains.
*
* _NSIG is supposed to be the highest signal number plus one.
*/
#define sigaddset _sigaddset
#define sigdelset _sigdelset
@ -13,10 +15,10 @@
/* Low bit of signal masks. */
#define SIGBIT_0 ((sigset_t) 1)
/* Mask of valid signals (0 - _NSIG). */
#define SIGMASK (((SIGBIT_0 << _NSIG) << 1) - 1)
/* Mask of valid signals (0 - (_NSIG-1)). */
#define SIGMASK ((SIGBIT_0 << _NSIG) - 1)
#define sigisvalid(signo) ((unsigned) (signo) <= _NSIG)
#define sigisvalid(signo) ((unsigned) (signo) < _NSIG)
PUBLIC int sigaddset(set, signo)
sigset_t *set;

12
test/test37.c
View File

@ -238,10 +238,8 @@ void test37b()
if (sigdelset(&s_nokill, SIGKILL) != 0) e(8);
s_nokill_stop = s_nokill;
if (sigdelset(&s_nokill_stop, SIGSTOP) != 0) e(8);
#ifndef _MINIX /* XXX - should unsupported signals be <= _NSIG? */
if (SIGSTOP > _NSIG) e(666);
if (SIGSTOP <= _NSIG && sigdelset(&s_nokill, SIGSTOP) != 0) e(888);
#endif /* _MINIX */
if (SIGSTOP >= _NSIG) e(666);
if (SIGSTOP < _NSIG && sigdelset(&s_nokill, SIGSTOP) != 0) e(888);
/* Now get most of the signals into default state. Don't change SIGINT
* or SIGQUIT, so this program can be killed. SIGKILL is also special.
@ -427,7 +425,7 @@ void test37c()
if (signal(SIGINT, catch1) != SIG_DFL) e(11);
/* Verify that SIG_ERR is correctly generated. */
if (signal(_NSIG + 1, catch1) != SIG_ERR) e(12);
if (signal(_NSIG, catch1) != SIG_ERR) e(12);
if (signal(0, catch1) != SIG_ERR) e(13);
if (signal(-1, SIG_DFL) != SIG_ERR) e(14);
@ -987,8 +985,8 @@ void clearsigstate()
sigset_t sigset_var;
/* Clear the signal state. */
for (i = 1; i <= _NSIG; i++) signal(i, SIG_IGN);
for (i = 1; i <= _NSIG; i++) signal(i, SIG_DFL);
for (i = 1; i < _NSIG; i++) signal(i, SIG_IGN);
for (i = 1; i < _NSIG; i++) signal(i, SIG_DFL);
sigfillset(&sigset_var);
sigprocmask(SIG_UNBLOCK, &sigset_var, (sigset_t *)NULL);
}